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odel.) W. M. BABBOTT J. H. ROBERTS 8c 0. BANKER.

No. Patented May 5, 1885.

llNireo Srarns harem Denice.

WILLIAM M. BABBOT'I, JOHN H. ROBERTS, AND CHRIST BANKER, OF PITTS- BURG, PENNSYLVANIA; SAID BANKER ASSIGNOR TO SAID BABBOTT AND JOHN S. MOMASTERS, OF SAME PLACE.

ELEVATOR-BUCKET.

SPECIFICATION forming part 51" Letters Patent No. 817,278, dated May 5, 1885.

Application filed October 1, 1884.

To all whom it may concern:

Be it known that we,WILLIAM M. BABBOTT, JOHN H. ROBERTS, and Onnis'r BANKER, citi- Zens of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered certain new and useful Improvements in Elevator Buckets, of which improvements the following is a specification. V

In the accompanying drawings,which make part of this specification, Figure 1 is a view in elevation of a sheet-metal blank for forming an elevator bucket embodying our invention; Fig. 2, a view in perspective of a bucket; Fig. 3, a vertical section through the same at the line was of Fig. 2, and Fig. 4 aplan or top View. The object of our invention is to provide a cup or bucket designed more particularly for water-elevators,but also adapted to other uses,- which shall possess the features of economy of construction, strength, tightness, and durability in use, and capacity of ready and secure connection to a conveyor-chain.

To this end our invention consist-sin ablank formed by cutting a sheet of metal to the shape hereinafter described, and an elevator-bucket composed of a single piece of metal cut, bent, and seamed to desired form, and completed by galvanizing without the use of solder or other fastening. The improvements claimed are hereinafter fully set forth.

In the practice of our invention we form by cutting out or stamping with suitable dies from a piece of sheet metal ablank which is in asin- 5 gle piece and of the shapeshown in Fig. 1, the

relative location and arrangement of the several portions of the blank,which are shown as separated by dotted lines, indicating the lines on which the blank is subsequently bent, be- 0 ing as follows: The front section, 1, is located between two side sections, 2,each of which has a back incline lap-section, 3, at and adjacent to the upper end of the outer of two inclined edges at its top. The side sections, 2, are made 5 of sufficient width to provide stock for outer flanges, 4, on their outer sides, and a bottom lap-section, 5, adjoins the lower side of each of the side sections, 2. A bottom section, 6, having a lap-section, 7, on each of its sides, is located next to and in line with the front sec- (No model.)

tion, 1, and a back section, 8, having an inner flange-section, 9, on each of its sides, adjoins the bottom section, 6, in line therewith and with the front section, and the blank terminates in a back incline section, 10, in line with 5 the sections 1 6 8, and havinga lap-section, 11, on each of its sides.

To form an elevator-bucket, we take a blank of the shape above described, bend the same upon the dotted lines shown in Fig. 1,and connect the several sections by double seams at both the top and the bottom of the bucket. To this end the lapsections 7 of the bottom section, 6, are each turned inwardly, and the side sections, 2, being bent perpendicularly to the front 1, the lap-sections 5 of the sides 2 are turned inwardly and double seams formed at the j unctionsofthesides andbottom. Theinnerflange sections, 9,are bent at right angles to the back section, 8, and the latter being turned up between the outer flanges, 4, of the side sections the incline section 10 of the back is connected to the side sections by double seams formed by bending the lap-sections 3 of the side pieces around the inwardly-turned lap-sections 11 of the back incline section, 10.

The bucket constructed as above described is by preference attached to the conveyor or elevator chain on which it is to be employed by having its double flanges bent over the sides so of an open link thereof, and is then completed by being subjected to the galvanizing process while connected to the link, the coating of zinc which is thereby deposited upon its surfaces and between the inner and outer flanges serv- 8 5 ing both to render it water-tight by preventing leakage at its joints, and to prevent oxidation when in use. The firm connection of the several sections by double seams at both top and bottom and the intermediate support afo forded to the back sections by the double flanges at its sides enables the coating of zinc to be thoroughly deposited and retained without liability to displacement at the joints, and insures the attainment of materially greater 5 strength and durability than is practicable in buckets of the constructions ordinarily heretofore employed without requiring the employ ment of solder, rivets, or other extraneous means of fastening. 10o

An additional feature of substantial value is afforded by the provision of the double lateral flanges 4 9,Which serve to connect the bucket to an open Wire link of an elevator-chain by being bent around the side members of the same, the connection of the bucket and chain being thereby firmly maintained in the opera tion of the elevator, While the removal of the bucket is rendered unnecessary, as desired changes in thelength of the chain may bemade by opening the intermediate connecting-links.

We claim herein as our invention 1. A blank for elevator-buckets, consisting of a single piece of sheet metal cut or stamped in the shape hereinbefore described, to Wit: having a front section, two side sections adjoining said front section, each having stock on its outer side for a side flange and having a lap-section at top and bottom, a bottom section adjoining the front section and having a lap-section on each of its sides, a back section adjoining the bottom section and having a flange-section on each of its sides, and a back incline section adjoining the back section and having a lap-section on each of its sides, substantially as set forth.

2. An elevator-bucket formed of a single piece of sheet metal cut and bent as described, said bucket being double seamed at the junction of its bottom and sides and at the junction of its sides with the upper portion of its back, substantially as set forth.

3. An elevator-bucket formed of a single piece of sheet metal cut and bent as described, said bucket having double flanges on each side of its back formed by upturned portions of the metal of its back located within and abutting against extensions formed on its sides, substantially as set forth.

4. A sheet-metal elevator-bucket constructed as described, and rendered water-tight by being galvanized While connected by its side flanges to alink of an elevator-chain, substan tially as set forth.

In testimony whereof we have hereunto set our hands.

WVILLIAM M. BABBOTT. JOHN H. ROBERTS.

, CHRIST BANKER. WVitnesses:

J. SNoWDEN BELL,

R. H. WHITTLESEY. 

